mirror of https://github.com/PCSX2/pcsx2.git
105 lines
2.0 KiB
C++
105 lines
2.0 KiB
C++
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#include <winsock2.h>
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#include <windows.h>
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#include <windowsx.h>
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#include <iphlpapi.h>
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#include <icmpapi.h>
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#include <stdio.h>
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#include <list>
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struct pending_icmp_request
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{
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char ipaddress[4];
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HANDLE hEvent;
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DWORD sTick;
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DWORD timeOut; //ttl in ms
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DWORD replyBufferSize;
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char *replyBuffer;
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char *requestData;
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void *userdata;
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pending_icmp_request()
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{
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memset(this,0,sizeof(pending_icmp_request));
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}
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pending_icmp_request(pending_icmp_request&p)
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{
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memcpy(this,&p,sizeof(p));
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}
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};
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typedef std::list<pending_icmp_request> request_list;
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request_list ping_list;
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HANDLE hIP;
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int icmp_init()
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{
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hIP = IcmpCreateFile();
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if(hIP==INVALID_HANDLE_VALUE)
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return -1;
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return 0;
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}
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void icmp_start(unsigned char *ipaddr, int ttl, void *data, int datasize, void *udata)
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{
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pending_icmp_request req;
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req.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
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req.sTick = GetTickCount();
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req.timeOut = ttl;
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req.requestData = (char*)malloc(datasize);
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memcpy(req.requestData,data,datasize);
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memcpy(req.ipaddress,ipaddr,4);
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req.replyBufferSize = (sizeof(ICMP_ECHO_REPLY) + sizeof(datasize));
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req.replyBuffer = (char*)malloc(replyBufferSize);
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req.userdata=udata;
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ping_list.push_back(req);
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IcmpSendEcho2(hIP,req.hEvent,NULL,NULL,*(DWORD*)ipaddr,req.requestData,58,
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NULL,req.replyBuffer,replyBufferSize,ttl);
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}
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int icmp_check_replies(char *ipaddress, void **udata)
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{
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for(request_list::iterator rit=ping_list.begin();rit!=ping_list.end();rit++)
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{
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if(WaitForSingleObject(rit->hEvent,0)==0) //handle is signaled, reply received.
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{
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if(IcmpParseReplies(rit->replyBuffer,rit->replyBufferSize)>0)
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{
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memcpy(ipaddress,rit->ipaddress,4);
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ping_list.remove(rit);
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return 1; //reply received
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}
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ResetEvent(rit->hEvent);
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}
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if(GetTickCount() >= (rit->sTick+rit->timeOut))
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{
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memcpy(ipaddress,rit->ipaddress,4);
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*udata = rit->userdata;
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ping_list.remove(rit);
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return 2; //timeout
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}
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}
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return 0;
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}
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void icmp_close()
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{
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IcmpCloseHandle(hIP);
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}
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